环境是vs2010 c#,前台使用js开发websocket
使用https+wss
apache配置转发,打开apache/conf/extra/httpd-ssl.conf
在<VirtualHost>一节添加
SSLProxyEngine On SSLProxyVerify none #SSLCertificateFile "Path1" #SSLCertificateKeyFile "Path2" #SSLCertificateChainFile "Path3" #我前面已经配置好了https,所以上述证书路径已经配置过,如果没有配置,请配置好 <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPreserveHost On ProxyRequests Off ProxyPass /ws/ ws://127.0.0.1:1818/ ProxyPassReverse /ws/ ws://127.0.0.1:1818/
发送端js代码如下:
function connect() { var address="wss://m.sjzeis.com/ws/"; var port = "1818"; // ws=new WebSocket(address+":"+port); ws=new WebSocket(address); ws.onopen=function(e){ send('success'); console.log("onopen:success"); }; ws.onmessage=function(e){ console.log("onmessage:"+e.data); ++n; document.getElementById('show').innerHTML=n; }; ws.οnerrοr=function(e){ console.log("onerror:"+e.data); }; ws.onclose=function(e){ console.log("Server > connection closed by server2."); }; } function quit(){ if(ws){ ws.close(); // console.log('Server > 断开连接.'); ws=null; } } function send(msg){ ws.send(msg); quit(); }
其中,port并没有使用,wss协议的地址最后要有"/",我就是一直没有加,所以测试不通过
接收端js如下,我添加了一个id为show的div,每次发送,接收端网页都会加1:
connect(); var n=0; function connect() { var address="wss://m.sjzeis.com/ws/"; var port = "443"; ws=new WebSocket(address+":"+port); ws.onopen=function(e){ console.log("onopen:已连接"); }; ws.onmessage=function(e){ console.log("onmessage:"+e.data); ++n; document.getElementById('show').innerHTML=n; }; ws.οnerrοr=function(e){ console.log("onerror:"+e.data); }; ws.onclose=function(e){ console.log("Server > connection closed by server1."); }; } function quit(){ if(ws){ ws.close(); console.log('Server > connection closed.'); ws=null; } } function send(msg){ ws.send(msg); }
c#代码如下:
using System; using System.Collections.Generic; using System.Linq; using System.Text; //---- using System.Net; using System.Net.Sockets; using System.Collections; using System.Threading; using System.Text.RegularExpressions; using System.Security; using System.Security.Cryptography; namespace WsServer { class Program { private static Socket listener; private static Hashtable ht; static void Main(string[] args) { int port = 1818;//监听端口为1818端口 ht = new Hashtable();//用于存放客户端的连接socket byte[] buffer = new byte[1024]; var localEP = new IPEndPoint(IPAddress.Any, port); listener = new Socket(localEP.Address.AddressFamily, SocketType.Stream, ProtocolType.Tcp); try { listener.Bind(localEP); listener.Listen(10); Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]等待客户端连接...."); while (true) { Socket clientSocket = listener.Accept(); //接收到客户端的连接 var th = new Thread(new ParameterizedThreadStart(Receive)); th.Start(clientSocket); } } catch (Exception e) { Console.WriteLine(e.ToString()); } } /// <summary> /// 线程调用 /// </summary> private static void Receive(object o)//Socket clientSocket) { Socket clientSocket = (Socket)o; clientSocket.Blocking = true; IPEndPoint clientipe = (IPEndPoint)clientSocket.RemoteEndPoint; // Console.WriteLine("[" + clientipe.Address.ToString() + "] Connected"); var key = string.Format("{0}-X-Q-X-{1}", clientipe.Address.ToString(), clientipe.Port); if (!ht.ContainsKey(key)) { //将ip地址设置为hashTable的key值 若hashTable中存在该ip地址则不再ht中添加socket以免发送重复数据 ht.Add(key, clientSocket); } Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]接收到了客户端:ip" + clientSocket.RemoteEndPoint.ToString() + "的连接"); byte[] buffer = new byte[1024]; int length = clientSocket.Receive(buffer); clientSocket.Send(PackHandShakeData(GetSecKeyAccetp(buffer, length))); Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]已经发送握手协议了...."); //接收用户姓名信息 //length = clientSocket.Receive(buffer); //string xm = AnalyticData(buffer, length); //clientSocket.Send(PackData("连接时间:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"))); try { //while (true) //{ var errLs = new List<object>(); //接受客户端数据 Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]等待客户端数据...."); try { length = clientSocket.Receive(buffer);//接受客户端信息 } catch (SocketException e) { //去除字典 Console.WriteLine(e.Message); try { foreach (DictionaryEntry de in ht) { if (de.Value == clientSocket) { ht.Remove(de.Key); } } } catch (Exception ex) { Console.WriteLine(ex.Message); } } string clientMsg = AnalyticData(buffer, length); Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]接受到客户端数据:" + clientMsg); if (clientMsg == "success") { //发送数据 string sendMsg = "" + clientMsg; Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]发送数据:“" + sendMsg + "” 至客户端...."); //遍历hashTable中的数据获取Socket发送数据 foreach (DictionaryEntry de in ht) { try { var sc = (Socket)de.Value; //sc.Send(PackData(clientSocket.RemoteEndPoint.ToString() + xm + "说:" + sendMsg)); sc.Send(PackData(sendMsg)); } catch (Exception e) { Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "]Num:{0} err:{1}", ht.Count, e); errLs.Add(de.Key); } } if (errLs != null && errLs.Any()) { foreach (var item in errLs) { ht.Remove(item); } } } Thread.Sleep(1000); //} } catch (SocketException e) { //去除字典 Console.WriteLine(e.Message); } catch (System.ObjectDisposedException e) { //去除字典 Console.WriteLine(e.Message); } catch (Exception e) { Console.WriteLine(e.Message); } } /// <summary> /// 打包握手信息 /// </summary> /// <param name="secKeyAccept">Sec-WebSocket-Accept</param> /// <returns>数据包</returns> private static byte[] PackHandShakeData(string secKeyAccept) { var responseBuilder = new StringBuilder(); responseBuilder.Append("HTTP/1.1 101 Switching Protocols" + Environment.NewLine); responseBuilder.Append("Upgrade: websocket" + Environment.NewLine); responseBuilder.Append("Connection: Upgrade" + Environment.NewLine); responseBuilder.Append("Sec-WebSocket-Accept: " + secKeyAccept + Environment.NewLine + Environment.NewLine); //如果把上一行换成下面两行,才是thewebsocketprotocol-17协议,但居然握手不成功,目前仍没弄明白! //responseBuilder.Append("Sec-WebSocket-Accept: " + secKeyAccept + Environment.NewLine); //responseBuilder.Append("Sec-WebSocket-Protocol: chat" + Environment.NewLine); return Encoding.UTF8.GetBytes(responseBuilder.ToString()); } /// <summary> /// 生成Sec-WebSocket-Accept /// </summary> /// <param name="handShakeText">客户端握手信息</param> /// <returns>Sec-WebSocket-Accept</returns> private static string GetSecKeyAccetp(byte[] handShakeBytes, int bytesLength) { string handShakeText = Encoding.UTF8.GetString(handShakeBytes, 0, bytesLength); string key = string.Empty; Regex r = new Regex(@"Sec\-WebSocket\-Key:(.*?)\r\n"); Match m = r.Match(handShakeText); if (m.Groups.Count != 0) { key = Regex.Replace(m.Value, @"Sec\-WebSocket\-Key:(.*?)\r\n", "$1").Trim(); } byte[] encryptionString = SHA1.Create().ComputeHash(Encoding.ASCII.GetBytes(key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11")); return Convert.ToBase64String(encryptionString); } /// <summary> /// 解析客户端数据包 /// </summary> /// <param name="recBytes">服务器接收的数据包</param> /// <param name="recByteLength">有效数据长度</param> /// <returns></returns> private static string AnalyticData(byte[] recBytes, int recByteLength) { if (recByteLength < 2) { return string.Empty; } bool fin = (recBytes[0] & 0x80) == 0x80; // 1bit,1表示最后一帧 if (!fin) { return string.Empty;// 超过一帧暂不处理 } bool mask_flag = (recBytes[1] & 0x80) == 0x80; // 是否包含掩码 if (!mask_flag) { return string.Empty;// 不包含掩码的暂不处理 } int payload_len = recBytes[1] & 0x7F; // 数据长度 byte[] masks = new byte[4]; byte[] payload_data; if (payload_len == 126) { Array.Copy(recBytes, 4, masks, 0, 4); payload_len = (UInt16)(recBytes[2] << 8 | recBytes[3]); payload_data = new byte[payload_len]; Array.Copy(recBytes, 8, payload_data, 0, payload_len); } else if (payload_len == 127) { Array.Copy(recBytes, 10, masks, 0, 4); byte[] uInt64Bytes = new byte[8]; for (int i = 0; i < 8; i++) { uInt64Bytes[i] = recBytes[9 - i]; } UInt64 len = BitConverter.ToUInt64(uInt64Bytes, 0); payload_data = new byte[len]; for (UInt64 i = 0; i < len; i++) { payload_data[i] = recBytes[i + 14]; } } else { Array.Copy(recBytes, 2, masks, 0, 4); payload_data = new byte[payload_len]; Array.Copy(recBytes, 6, payload_data, 0, payload_len); } for (var i = 0; i < payload_len; i++) { payload_data[i] = (byte)(payload_data[i] ^ masks[i % 4]); } return Encoding.UTF8.GetString(payload_data); } /// <summary> /// 打包服务器数据 /// </summary> /// <param name="message">数据</param> /// <returns>数据包</returns> private static byte[] PackData(string message) { byte[] contentBytes = null; byte[] temp = Encoding.UTF8.GetBytes(message); if (temp.Length < 126) { contentBytes = new byte[temp.Length + 2]; contentBytes[0] = 0x81; contentBytes[1] = (byte)temp.Length; Array.Copy(temp, 0, contentBytes, 2, temp.Length); } else if (temp.Length < 0xFFFF) { contentBytes = new byte[temp.Length + 4]; contentBytes[0] = 0x81; contentBytes[1] = 126; contentBytes[2] = (byte)(temp.Length & 0xFF); contentBytes[3] = (byte)(temp.Length >> 8 & 0xFF); Array.Copy(temp, 0, contentBytes, 4, temp.Length); } else { // 暂不处理超长内容 } return contentBytes; } } }